CN108241830A - Biometric recognition device.It - Google Patents
Biometric recognition device.It Download PDFInfo
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- CN108241830A CN108241830A CN201611208416.8A CN201611208416A CN108241830A CN 108241830 A CN108241830 A CN 108241830A CN 201611208416 A CN201611208416 A CN 201611208416A CN 108241830 A CN108241830 A CN 108241830A
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- biometric recognition
- collimator
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of biometric recognition device.It, including light source, leaded light component, image-pickup assembly and first collimator.Light source is adapted to provide for light beam.Leaded light component is located on the transmission path of light beam.Image-pickup assembly is located at below leaded light component and with multiple pixel regions.First collimator is between leaded light component and image-pickup assembly, and wherein first collimator includes light-transmitting component and light-absorption layer.Light-transmitting component has first surface and second surface.Light-absorption layer is configured on first surface and second surface and is open with expose first surface multiple first and exposes multiple the second of second surface and is open.First opening is with the second superposition of end gap in pixel region and with identical aperture.Wide-angle light beam is absorbed using light-absorption layer, will be transmitted to the beam collimation of image-pickup assembly, makes the capture increased quality of image-pickup assembly.Therefore, biometric recognition device.It can have good identification capability.
Description
Technical field
The present invention relates to a kind of biometric recognition device.Its.
Background technology
The type of biological characteristic identification includes face, sound, iris, retina, vein, fingerprint and palmmprint identification etc..By
It is unique in everyone fingerprint, and fingerprint is not easy to change with age or physical condition, therefore fingerprint
Device for identifying has become a kind of current most popular biometric recognition device.It.According to the difference of sensing mode, identification of fingerprint dress
Optical profile type and condenser type can be divided by putting.Capacitance type fingerprint device for identifying be assembled in electronic product (such as：Mobile phone, tablet computer)
When, capacitance type fingerprint device for identifying top is equipped with protection component (cover lens) more.In general, need additional processing (such as
Drilling or thinning) protection component, so that capacitance type fingerprint device for identifying can sense when the capacitance or electricity caused by finger touching
Field variation.
Compared to capacitance type fingerprint device for identifying, optical fingerprint device for identifying acquisition penetrate readily through protection component light into
Row identification of fingerprint, and additional processing can not had to and protect component, thus and the combination of electronic product on it is more convenient.
Optical fingerprint device for identifying generally includes light source, image-pickup assembly and light-transmitting component.Light source is sending out light
Beam, the finger being pressed on irradiation on light-transmitting component.The fingerprint of finger is made of a plurality of irregular burr with dimpled grain.Quilt
Burr and the light beam of dimpled grain reflection can be formed as the fingermark image that light and shade is interlocked on the receiving plane of image-pickup assembly.Image is picked
It takes component that fingermark image can be converted to corresponding image information, and image information is input to processing unit.Processing unit can
The image information corresponding to fingerprint is calculated using algorithm, to carry out the identity identification of user.However, in above-mentioned capture process
In, image-pickup assembly is easily dispersedly transferred to by the light beam that fingerprint reflects, and cause capture quality bad, influence identification knot
Fruit.
Invention content
The present invention provides a kind of biometric recognition device.It.
According to an embodiment of the invention, biometric recognition device.It include light source, leaded light component, image-pickup assembly and
First collimator.Light source is adapted to provide for light beam.Leaded light component is located on the transmission path of light beam.Image-pickup assembly is located at leaded light
Below component and with multiple pixel regions.First collimator is between leaded light component and image-pickup assembly, wherein first is accurate
Straight device includes light-transmitting component and light-absorption layer.Light-transmitting component has first surface and positioned at first surface and image-pickup assembly
Between second surface.Light-absorption layer configuration is on first surface and second surface and with exposing multiple the of first surface
One opening and multiple second openings for exposing second surface, wherein first is open with the second superposition of end gap in pixel region, and
First opening is identical with the aperture of the second opening.
In biometric recognition device.It according to an embodiment of the invention, leaded light component has light out part and is connected to
The light in part of light out part.Light source is co-located at image-pickup assembly below light out part.Light in part be located at light source and light out part it
Between.
In biometric recognition device.It according to an embodiment of the invention, light source is located at the side of leaded light component.
In biometric recognition device.It according to an embodiment of the invention, leaded light component is towards the surface of first collimator
It is formed with multiple micro-structures.Surface is protruded or be recessed in micro-structure.
In biometric recognition device.It according to an embodiment of the invention, the refractive index of light-transmitting component is fallen 1.3 to 1.7
In the range of.
In the biometric recognition device.It according to an embodiment of the invention, the aperture of each first opening and light-transmitting component
Highly ratio is fallen in the range of 2 to 20.
In biometric recognition device.It according to an embodiment of the invention, light-transmitting component also have connection first surface with
The side wall surface of second surface, and light-absorption layer is also disposed in side wall surface.
In biometric recognition device.It according to an embodiment of the invention, biometric recognition device.It further includes cover board,
Wherein leaded light component is between cover board and first collimator.
In biometric recognition device.It according to an embodiment of the invention, biometric recognition device.It further includes the second standard
Straight device.Second collimator is between leaded light component and first collimator.
In biometric recognition device.It according to an embodiment of the invention, the second collimator includes multiple prisms, and rib
The apex angle of mirror is respectively directed to leaded light component.
Based on above-mentioned, in the biometric recognition device.It of the embodiment of the present invention, pass through the opening of modulation first and second
The aperture of opening acts on and by the wide-angle light beam of leaded light component to absorb through object to be identified, will be transmitted to image capture group
The beam collimation of part makes the capture increased quality of image-pickup assembly.Therefore, biometric recognition device.It can have good
Identification capability.
Description of the drawings
Comprising attached drawing to further understand the present invention, and attached drawing is incorporated in this specification and forms one of this specification
Point.Illustrate the embodiment of the present invention, and principle for explaining the present invention together with the description.
Fig. 1 is the diagrammatic cross-section of the biometric recognition device.It of one embodiment of the invention；
Fig. 2 is a kind of enlarged drawing of leaded light component in Fig. 1；
Fig. 3 is a kind of schematic diagram of first collimator in Fig. 1；
Fig. 4 is a kind of diagrammatic cross-section of first collimator, image-pickup assembly and circuit board in Fig. 1；
Fig. 5 is leaded light component and a kind of enlarged drawing of the second collimator in Fig. 1；
Fig. 6 is the diagrammatic cross-section of the biometric recognition device.It of another embodiment of the present invention.
Drawing reference numeral explanation
10：Object to be identified；
100、100A：Biometric recognition device.It；
110：Light source；
112：Luminescence component；
120、120A：Leaded light component；
122：Light out part；
124：Light in part；
130：Image-pickup assembly；
132：Charged Coupled Device；
140：First collimator；
142：Light-transmitting component；
144：Light-absorption layer；
150：Circuit board；
160：Cover board；
170：Second collimator；
172：Prism；
B、B’、B1’、B2’：Light beam；
BA：Base angle；
C：Recess；
H：Highly；
M：Micro-structure；
O1：First opening；
O2：Second opening；
PR：Pixel region；
S、S’：Surface；
S1：First reflecting surface；
S2：Second reflecting surface；
S1421：First surface；
S1422：Second surface；
S1423：Side wall surface；
TA：Apex angle；
WO1、WO2：Aperture.
Specific embodiment
With detailed reference to the exemplary embodiment of the present invention, the example of exemplary embodiment is illustrated in attached drawing.Only
It is possible that same components symbol is used for representing same or similar part in the accompanying drawings and the description.
Fig. 1 is the diagrammatic cross-section of the biometric recognition device.It of one embodiment of the invention.Please refer to Fig. 1, biological characteristic
Device for identifying 100 is, for example, fingeprint distinguisher, and to recognize the fingerprint of object 10 to be identified, but not limited to this.In another reality
Apply in example, biometric recognition device.It 100 also can be used to identification vein, palmmprint or fingerprint, vein and palmmprint wherein extremely
Combination two few.
It is accurate that biometric recognition device.It 100 includes light source 110, leaded light component 120, image-pickup assembly 130 and first
Straight device 140.
Light source 110 is adapted to provide for light beam B.Light source 110 can be non-visible light sources or visible light source.That is,
Light beam B can be black light (such as：Infrared light) or visible ray (such as：Feux rouges, blue and green light or combination).Alternatively, light
Source 110 can be the combination of non-visible light sources and visible light source.For example, light source 110 may include multiple luminescence components
112.Luminescence component 112 can be light emitting diode or the luminescence component of other appropriate types.Fig. 1 schematically shows that two shine
Component 112, and two luminescence components 112 are located at the opposite side of image-pickup assembly 130.However, the quantity of luminescence component 112 with
And configuration mode can change on demand, and be not limited.
Leaded light component 120 is located on the transmission path of light beam B, and it is to be identified to be suitable for the light beam B for providing light source 110 guiding
Object 10.For example, the material of leaded light component 110 can be glass, makrolon (PC), polymethyl methacrylate (PMMA) or
Other suitable materials.In the present embodiment, light source 110 is located at the same side of leaded light component 120 with image-pickup assembly 130.It is raw
Object feature identification device 100 further comprises circuit board 150.Light source 110 be configured on circuit board 150 and with the electricity of circuit board 150
Connection.Leaded light component 120 has light out part 122 and is connected to an at least light in part 124 for light out part 122.Light source 110 and shadow
As acquisition component 130 is co-located at 122 lower section of light out part, and light source 110 is located at by image-pickup assembly 130.Light in part 124
Between light source 110 and light out part 122.Specifically, light in part 124 can be fixed on circuit board 150, and light in part 124 has
There is recess C.Recess C crosses the space for accommodating light source 110 with circuit board 150.In another embodiment, light in part 124 and circuit
The wherein at least one of plate 150 can have recess (not shown), to accommodate light source 110.In another embodiment, light in part 124
With circuit board 150 can by fixed mechanism (not shown) or adhesion layer (be not shown, such as：Optical cement) it is fixed together.Again
In one embodiment, light in part 124 can by adhesion layer (be not shown, such as：Optical cement) and be fixed on light source 110, and enter light
Portion 124 can not be contacted with circuit board 150.Fig. 1 schematically shows two light in part 124, and two light in part 124 are in light extraction
The opposite side in portion 122.However, the quantity and configuration mode of light in part 124 can change on demand, and it is not limited.
Fig. 2 is a kind of enlarged drawing of leaded light component in Fig. 1.Fig. 1 and Fig. 2 is please referred to, the light beam B that light source 110 projects enters certainly
Light portion 124 enters leaded light component 120, and light beam B can be transferred to light out part 122 via light in part 124.Leaded light component 120 towards
The surface S of first collimator 140 can be selectively formed multiple micro-structure M (Fig. 1 is not shown, and please refers to Fig. 2).Micro-structure M
Suitable for changing the direction of transfer of light beam B so that vertically or close to ground direct projection of hanging down go out light out part by the light beam B of micro-structure M reflection
122.As shown in Fig. 2, micro-structure M can protrude from surface S and can have the first reflecting surface S1 and the second reflecting surface S2.First is anti-
Face S1 and the second reflecting surface S2 is penetrated to be connected with each other, wherein the first reflecting surface S1 and the second reflecting surface S2 is tilted relative to surface S, and
First reflecting surface S1 is opposite with the inclined direction of the second reflecting surface S2.In one embodiment, micro-structure M, light out part 122 and enter
Light portion 124 can be integrally formed, and but not limited to this.In another embodiment, micro-structure M, light out part 122 and light in part 124
Can make respectively, then by bindiny mechanism or adhesion layer (such as：Optical cement) it is fixed together.Alternatively, micro-structure M also can be recessed
In surface S.Specifically, micro-structure M can be formed in the recess on the S of surface.In addition, the quantity of micro-structure M and its distribution can
Change according to different demands, and be not limited to the quantity shown by Fig. 2 and distribution.
The surface S ' of 122 output beam B of light out part is opposite with the surface S for being formed with micro-structure M.In one embodiment, table
Face S ' can be the press surface for object 10 to be identified pressing.In the case where surface S ' is the framework of press surface, as shown in Fig. 2, from light
The light beam B in source 110 is sequentially by light in part 124 and light out part 122, and in surface S ' experiences total internal reflections (Total
Internal Reflection, TIR), then sequentially reflected by the second reflecting surface S2 and the first reflecting surface S1, and it is vertical or
Close to vertically injection surface S '.
Alternatively, as shown in Figure 1, biometric recognition device.It 100 can further comprise cover board 160 for object 10 to be identified by
Pressure.Cover board 160 is located at 120 top of leaded light component, and leaded light component 120 is between cover board 160 and first collimator 140.Lid
Plate 160 can be the electronic product to be assembled (such as：Touch panel or touch-control display panel) protection component (cover
Lens), but not limited to this.In one embodiment, cover board 160 can be by bindiny mechanism or adhesion layer (example with leaded light component 120
Such as：Optical cement) and be fixed together, but not limited to this.In the case of cover board 160 and leaded light component 120 being fixed with adhesion layer,
The refractive index of adhesion layer, cover board 160 and leaded light component 120 can be same or similar, and to reduce interface reflection, and then it is special to promote biology
Levy the light utilization ratio of device for identifying 100 and/or capture quality.However, in other embodiments, adhesion layer, cover board 160 are with leading
The refractive index of optical assembly 120 also can be different.Under the framework of setting cover board 160, the light beam B from light source 110 is sequentially by entering
Light portion 124, light out part 122 and cover board 160, and in cover board 160 for the surface experiences total internal reflection of object 10 to be identified pressing.Through
Object 10 to be identified act on (such as：Diffusion) light beam B ' sequentially by cover board 160 and light out part 122 and be transferred to surface S.It passes
Being handed to a part of the light beam B ' of surface S can be reflected by surface S, and again towards cover board 160 for the surface of object 10 to be identified pressing
It transmits.On the other hand, leaded light component 120 can be projected from surface S by being transferred to another part of the light beam B ' of surface S.
Image-pickup assembly 130 is located at 120 lower section of leaded light component and with the multiple pixel for example arranged in array
(pixel) area PR (being shown in Fig. 4) to receive the light beam B ' acted on through object 10 to be identified, and then obtains the shadow of object 10 to be identified
Picture.In the present embodiment, image-pickup assembly 130 is for example including multiple Charged Coupled Device (Charge-Coupled
Device, CCD) 132 (being shown in Fig. 4).Charged Coupled Device 132 is configured on circuit board 150 and is electrically connected with circuit board 150
It connects.The region of Charged Coupled Device 132 is the pixel region PR of image-pickup assembly 130.In another embodiment, image is picked
Component 130 is taken to may include multiple complementary metal oxide semiconductors (Complementary Metal Oxide
Semiconductor, CMOS), and the pixel region that the region of complementary metal oxide semiconductor is image-pickup assembly 130
PR。
First collimator 140 is between leaded light component 120 and image-pickup assembly 130, and first collimator 140 is located at
On the transmission path of light beam B ' after the effect of object 10 to be identified.For example, first collimator 140 is configurable on image capture group
On part 130, and first collimator 140 and image-pickup assembly 130 can by bindiny mechanism or adhesion layer (such as：Optical cement) and
It is fixed together, but not limited to this.
Fig. 3 is a kind of schematic diagram of first collimator in Fig. 1, shows the front and the back side of first collimator.Fig. 4 is figure
A kind of diagrammatic cross-section of first collimator, image-pickup assembly and circuit board in 1.Please refer to Fig. 1, Fig. 3 and Fig. 4, first
Collimator 140 includes light-transmitting component 142 and light-absorption layer 144.Light-transmitting component 142 has first surface S1421, positioned at the first table
Second surface S1422 and connection first surface S1421 and second surface between face S1421 and image-pickup assembly 130
The side wall surface S1423 of S1422.Light-absorption layer 144 is configured on first surface S1421 and second surface S1422 and with exposure
Go out multiple first opening O1 of first surface S1421 and expose multiple second opening O2 of second surface S1422, wherein the
One opening O1 and the second opening O2 is overlapped in area pixel PR, and the aperture WO2 of the openings of aperture WO1 and second O2 of the first opening O1
It is identical.Furthermore, the first opening O1 has identical or substantially the same shape and size with the second opening O2.It is so-called
Substantially the same shape and size allows for the error caused by manufacture craft.In addition, the first opening O1 is opened with second
Mouth O2 is aligned in pixel region PR, so as to which sequentially image capture can be transferred to by the light beam of the first opening O1 and the second opening O2
Component 130 (as shown in the light beam B2 ' of Fig. 4).In the present embodiment, the size of pixel region PR may be slightly larger than the first opening O1's
The aperture WO2 of the openings of aperture WO1 and second O2, but not limited to this.In addition, light-absorption layer 144 can be further configured in light transmission group
On the side wall surface S1423 of part 142, projected to avoid the light beam being transmitted in light-transmitting component 142 from side wall surface S1423.However,
In another embodiment, light-absorption layer 144 can not be configured on the side wall surface S1423 of light-transmitting component 142.
When between leaded light component 120 and first collimator 140 light transfer medium (such as：Air or optical cement) refraction
When rate is different from the refractive index of light-transmitting component 142, the light beam B ' of incident light-transmitting component 142 is (including large angle incidence light-transmitting component
142 light beam B1 ' and the light beam B2 ' of low-angle incidence light-transmitting component 142) it can be in the first surface S1421 of light-transmitting component 142
Enter light-transmitting component 142 via refraction.Therefore, the setting of light-transmitting component 142 contributes to converging beam B ' into the first collimation
The angle of device 140, and then allow more light beam B ' that image-pickup assembly 130 can be transferred to.
The material of light-transmitting component 142 can be used glass, makrolon (PC), polymethyl methacrylate (PMMA) or other
Suitable material.The material of light-absorption layer 144 for example can be used containing light absorbent (such as：Carbon) silica gel system or acryl system material
Material.Thus, even if the light beam B1 ' of large angle incidence light-transmitting component 142 and the light beam of low-angle incidence light-transmitting component 142
B2 ' all enters light-transmitting component 142 by the first opening O1, is still inhaled using the light-absorption layer 144 on second surface S1422
Receive the light beam B1 ' of large angle incidence light-transmitting component 142, and only allow low-angle incidence light-transmitting component 142 light beam B2 ' by and pass
It is handed to image-pickup assembly 130.
Whether the light beam into first collimator 140 by the light-absorption layer 144 on second surface S1422 is absorbed and can be depended on
The height H and light beam B ' of aperture WO2, light-transmitting component 142 in the openings of aperture WO1 and second O2 of the first opening O1 are saturating
The refraction angle (being determined by the incidence angle of light beam B ' and the refractive index of light-transmitting component 142) of the first surface S1421 of optical assembly 142
Deng.In the case where the height H of light-transmitting component 142 is definite value, the aperture of the openings of aperture WO1 and second O2 of the first opening O1
WO2 is bigger, and the angular range of light beam B ' that image-pickup assembly 130 receives is bigger.First opening O1 aperture WO1 and
The aperture WO2 of second opening O2 is in the case of definite value, the height H of light-transmitting component 142 is bigger, and image-pickup assembly 130 receives
The angular range of light beam B ' arrived is smaller.In the aperture WO1, the second opening aperture WO2 of O2 and light transmission group of the first opening O1
In the case that the height H of part 142 is definite value, the refraction angle of light beam B ' is bigger (namely incidence angle is bigger), is more possible to be inhaled
Photosphere 144 absorbs.In the present embodiment, the refractive index of light-transmitting component 142 is more than 1, and for example falls in the range of 1.3 to 1.7.
In addition, the aperture WO1 (and aperture WO2 of the second opening O2) and the height H ratios of light-transmitting component 142 of each first opening O1 are fallen
In the range of 2 to 20.However, the aperture WO1 and light-transmitting component 142 of the refractive index of light-transmitting component 142 and each first opening O1
Height H ratios can according to different design requirement (such as：The pitch (pitch) of image-pickup assembly 130) change, and be not limited to
It is above-mentioned.
Absorbed using light-absorption layer 144 acted on through object 10 to be identified and by the wide-angle light beam of leaded light component 120 (such as：
Light beam B1 '), can make only special angle light beam (light beam of low-angle incidence, such as：Light beam B2 ') it is transferred to image capture
Component 130.Be open the aperture WO2 of the openings of aperture WO1 and second O2 of O1 via appropriate modulation first, can make by the
The light beam B ' of collimator 140 can be with 0 degree or close to 0 degree of angle incidence image-pickup assembly 130.In other words, first
Collimator 140 helps to will be transmitted to the beam collimation of image-pickup assembly 130.Stray light is filtered out in this way, not only helping,
It additionally aids and avoids the problem that the light beam B ' from difference the second opening O2 outputs is interfered with each other, and makes taking for image-pickup assembly 130
As increased quality.Therefore, biometric recognition device.It 100 can have good identification capability.Fig. 3 schematically shows first and opens
The shape of the openings of mouth O1 and second O2 is circle, and but not limited to this.In other embodiments, the first opening O1 and second
The shape of opening O2 can also be triangle, quadrangle, pentagon or other polygons.
According to different demands, biometric recognition device.It 100 may also include other assemblies.For example, biological characteristic is distinguished
Identification device 100 may also include the second collimator 170.Second collimator 170 be located at leaded light component 120 and first collimator 140 it
Between, and the second collimator 170 is located on the transmission path of the light beam B ' after object 10 to be identified effect.For example, the second collimation
Device 170 is configurable on the S of surface, and 120 and second collimator 170 of leaded light component can by bindiny mechanism or adhesion layer (such as：
Optical cement) and be fixed together, but not limited to this.
Second collimator 170 is suitable for before light beam B ' is by first collimator 140, in advance by light beam B ' collimationization, with
The angle of divergence of converging beam B '.In this way, probability of the light beam B ' subsequently through first collimator 140 can be increased.Fig. 5 is to be led in Fig. 1
A kind of enlarged drawing of optical assembly and the second collimator.Fig. 1 and Fig. 5 is please referred to, the second collimator 170 may include multiple prisms
172, and the apex angle TA of prism 172 is respectively directed to leaded light component 120.In the present embodiment, two base angle BA of each prism 172
Angle is identical.However, the apex angle TA and base angle BA of prism 172 can change according to different demands, and it is without being limited thereto.
Fig. 6 is the diagrammatic cross-section of the biometric recognition device.It of another embodiment of the present invention.The biological characteristic identification of Fig. 6
Device 100A is similar to the biometric recognition device.It 100 of Fig. 1, and biometric recognition device.It 100A have distinguished with biological characteristic
The effect of identification device 100 is similar and advantage are just no longer repeated in this.The biology of the biometric recognition device.It 100A and Fig. 1 of Fig. 6
The difference of feature identification device 100 is that the position of light source 110 is different.Specifically, in the embodiment in fig 6, light source 110
In the side of leaded light component 120A.Under this framework, leaded light component 120A is, for example, plate, and leaded light component 120A can be omitted
The light in part 124 of leaded light component 120 in Fig. 1.
In conclusion in the biometric recognition device.It of the embodiment of the present invention, pass through the opening of modulation first and second
The aperture of opening acts on and by the wide-angle light beam of leaded light component to absorb through object to be identified, will be transmitted to image capture group
The beam collimation of part makes the capture increased quality of image-pickup assembly.Therefore, biometric recognition device.It can have good
Identification capability.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of biometric recognition device.It, which is characterized in that including：
Light source is adapted to provide for light beam；
Leaded light component, on the transmission path of the light beam；
Image-pickup assembly, below the leaded light component and with multiple pixel regions；And
First collimator, between the leaded light component and the image-pickup assembly, wherein the first collimator includes：
Light-transmitting component has first surface and the second table between the first surface and the image-pickup assembly
Face；And
Light-absorption layer is configured on the first surface and the second surface, and the light-absorption layer has and exposes described the
Multiple first openings on one surface and multiple second openings for exposing the second surface, wherein the multiple first opening
With the multiple second superposition of end gap in the pixel region, and the aperture of the multiple first opening and the multiple second opening
It is identical.
2. biometric recognition device.It according to claim 1, which is characterized in that the leaded light component have light out part with
And the light in part of the light out part is connected to, the light source is co-located at the image-pickup assembly below the light out part,
The light in part is between the light source and the light out part.
3. biometric recognition device.It according to claim 1, which is characterized in that the light source is located at the leaded light component
Side.
4. biometric recognition device.It according to claim 1, which is characterized in that the leaded light component is towards described first
The surface of collimator is formed with multiple micro-structures, and the surface is protruded or be recessed in the multiple micro-structure.
5. biometric recognition device.It according to claim 1, which is characterized in that the refractive index of the light-transmitting component is fallen
In the range of 1.3 to 1.7.
6. biometric recognition device.It according to claim 1, which is characterized in that the aperture of each the multiple first opening
It is fallen in the range of 2 to 20 with the height ratio of the light-transmitting component.
7. biometric recognition device.It according to claim 1, which is characterized in that the light-transmitting component also has connection institute
The side wall surface of first surface and the second surface is stated, and the light-absorption layer is also disposed in the side wall surface.
8. biometric recognition device.It according to claim 1, which is characterized in that further include：
Cover board, wherein the leaded light component is between the cover board and the first collimator.
9. biometric recognition device.It according to claim 1, which is characterized in that further include：
Second collimator, between the leaded light component and the first collimator.
10. biometric recognition device.It according to claim 9, which is characterized in that second collimator includes multiple
Prism, and the apex angle of the multiple prism is respectively directed to the leaded light component.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208416.8A CN108241830A (en) | 2016-12-23 | 2016-12-23 | Biometric recognition device.It |
| TW106102523A TWI637326B (en) | 2016-12-23 | 2017-01-24 | Biological feature identification device |
| PCT/CN2017/076423 WO2018113106A1 (en) | 2016-12-23 | 2017-03-13 | Biometric identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208416.8A CN108241830A (en) | 2016-12-23 | 2016-12-23 | Biometric recognition device.It |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108241830A true CN108241830A (en) | 2018-07-03 |
Family
ID=62624240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208416.8A Pending CN108241830A (en) | 2016-12-23 | 2016-12-23 | Biometric recognition device.It |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN108241830A (en) |
| TW (1) | TWI637326B (en) |
| WO (1) | WO2018113106A1 (en) |
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| CN109948558A (en) * | 2019-03-23 | 2019-06-28 | 深圳阜时科技有限公司 | A kind of pedestal and sensing mould group |
| CN109979326A (en) * | 2019-03-23 | 2019-07-05 | 深圳阜时科技有限公司 | A kind of display device and electronic equipment |
| CN109977852A (en) * | 2019-03-23 | 2019-07-05 | 深圳阜时科技有限公司 | A kind of sensing mould group, display device and electronic equipment |
| CN110032950A (en) * | 2019-03-23 | 2019-07-19 | 深圳阜时科技有限公司 | A kind of pedestal and sensing mould group |
| CN110070799A (en) * | 2019-03-23 | 2019-07-30 | 深圳阜时科技有限公司 | A kind of display device and electronic equipment |
| CN110164307A (en) * | 2019-05-23 | 2019-08-23 | 厦门天马微电子有限公司 | A kind of display device being built-in with fingerprint recognition inductor |
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Also Published As
| Publication number | Publication date |
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| TW201824073A (en) | 2018-07-01 |
| TWI637326B (en) | 2018-10-01 |
| WO2018113106A1 (en) | 2018-06-28 |
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Application publication date: 20180703 |